// to SingleStack. Services can be "SingleStack" (a single IP family),
  // "PreferDualStack" (two IP families on dual-stack configured clusters or
  // a single IP family on single-stack clusters), or "RequireDualStack"
  // (two IP families on dual-stack configured clusters, otherwise fail). The
  // ipFamilies and clusterIPs fields depend on the value of this field. This
  // field will be wiped when updating a service to type ExternalName.

func (c Clusters) ForNetworks(networks ...string) Clusters {
	out := make(Clusters, 0, len(c))
	for _, cc := range c {
		for _, network := range networks {
			if cc.NetworkName() == network {
				out = append(out, cc)
				break
			}
		}
	}
	return out
}

// Primaries returns the subset that are primary clusters.
func (c Clusters) Primaries(excluded ...Cluster) Clusters {

	row := metav1.TableRow{
		Object: runtime.RawExtension{Object: obj},
	}
	svcType := obj.Spec.Type
	internalIP := "<none>"
	if len(obj.Spec.ClusterIPs) > 0 {
		internalIP = obj.Spec.ClusterIPs[0]
	}

	externalIP := getServiceExternalIP(obj, options.Wide)
	svcPorts := makePortString(obj.Spec.Ports)
	if len(svcPorts) == 0 {
		svcPorts = "<none>"
	}

		in, out := &in.Selector, &out.Selector
		*out = make(map[string]string, len(*in))
		for key, val := range *in {
			(*out)[key] = val
		}
	}
	if in.ClusterIPs != nil {
		in, out := &in.ClusterIPs, &out.ClusterIPs
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.IPFamilies != nil {
		in, out := &in.IPFamilies, &out.IPFamilies
		*out = make([]IPFamily, len(*in))

		in, out := &in.Selector, &out.Selector
		*out = make(map[string]string, len(*in))
		for key, val := range *in {
			(*out)[key] = val
		}
	}
	if in.ClusterIPs != nil {
		in, out := &in.ClusterIPs, &out.ClusterIPs
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.ExternalIPs != nil {
		in, out := &in.ExternalIPs, &out.ExternalIPs
		*out = make([]string, len(*in))

	out.Ports = *(*[]core.ServicePort)(unsafe.Pointer(&in.Ports))
	out.Selector = *(*map[string]string)(unsafe.Pointer(&in.Selector))
	out.ClusterIP = in.ClusterIP
	out.ClusterIPs = *(*[]string)(unsafe.Pointer(&in.ClusterIPs))
	out.Type = core.ServiceType(in.Type)
	out.ExternalIPs = *(*[]string)(unsafe.Pointer(&in.ExternalIPs))
	out.SessionAffinity = core.ServiceAffinity(in.SessionAffinity)

	iptablestest "k8s.io/kubernetes/pkg/util/iptables/testing"
	netutils "k8s.io/utils/net"
	"k8s.io/utils/ptr"
)

// Conventions for tests using NewFakeProxier:
//
// Pod IPs:             10.0.0.0/8
// Service ClusterIPs:  172.30.0.0/16
// Node IPs:            192.168.0.0/24
// Local Node IP:       192.168.0.2
// Service ExternalIPs: 192.168.99.0/24
// LoadBalancer IPs:    1.2.3.4, 5.6.7.8, 9.10.11.12
// Non-cluster IPs:     203.0.113.0/24

			expectedError: true,
		},
	}

	for _, tc := range testCases {
		t.Run(tc.desc, func(t *testing.T) {
			if tc.hasClusterDNS {
				configurer.clusterDNS = testClusterDNS
			} else {
				configurer.clusterDNS = nil
			}
			pod.Spec.DNSPolicy = tc.dnsPolicy
			pod.Spec.HostNetwork = tc.hostNetwork

			resType, err := getPodDNSType(pod)
			if tc.expectedError {
				if err == nil {

          return mlir::failure();
      }
    }
    return success();
  }

  ClusterMap clusters;
  result = CollectAndGroupClusterOps(block, &clusters);
  if (failed(result)) return result;

  for (const auto& cluster_metadata_and_ops : clusters) {
    const auto& cluster_ops = cluster_metadata_and_ops.getSecond();

    auto cluster_metadata =

	for _, c := range ctx.Clusters().Configs().Remotes() {
		if err = i.reinstallConfigCluster(c); err != nil {
			return i, err
		}
	}

	// Install (non-config) remote clusters.
	errG = multierror.Group{}
	for _, c := range ctx.Clusters().Remotes(ctx.Clusters().Configs()...) {
		c := c
		errG.Go(func() error {
			if err := i.installRemoteCluster(c); err != nil {